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Factors affecting the biological activity of streptomyces aureofaciens MY18 and str. roseviolaceus MR13
Other Title(s)
العوامل المؤثرة على النشاط الحيوي لستربتوميسس أورفاشينس إم. واي-18 ستربتوميسس روزيفيولاشيس إم. آر-13
Source
Journal of King Abdulaziz University : Sciences
Issue
Vol. 3, Issue 1 (30 Jun. 1991), pp.5-19, 15 p.
Publisher
King Abdulaziz University Scientific Publishing Center
Publication Date
1991-06-30
Country of Publication
Saudi Arabia
No. of Pages
15
Main Subjects
Abstract EN
The biological activity of Streptomyces aureofaciens MY18 and Streptomyces roseviolaceus MR13 (local isolates) as influenced by temperature, aeration, different media and carbon and nitrogen sources were investigated.
It was found that biomass, growth parameters and antibiotic activity of both strains were highly affected by these factors.
The first strain showed higher temperature range than that observed for second strain.
The optimum temperature for growth and antibiotic production of both strains was 30°C.
Shaken cultures supported growth and antibiotic activity than static cultures.
Starch and nitrate stimulated antibiotic production in the culture filtrate of both organisms.
The optical density of golden yellow soluble pigment of Streptomyces MY18 (gray series) cultures increased with the increase of antibiotic activity, which can be used as an indication for antibiotic concentration and its activity.
American Psychological Association (APA)
Tawfiq, Kamal Abbas& Ramadan, al-Shahhat Muhammad. 1991. Factors affecting the biological activity of streptomyces aureofaciens MY18 and str. roseviolaceus MR13. Journal of King Abdulaziz University : Sciences،Vol. 3, no. 1, pp.5-19.
https://search.emarefa.net/detail/BIM-399917
Modern Language Association (MLA)
Tawfiq, Kamal Abbas& Ramadan, al-Shahhat Muhammad. Factors affecting the biological activity of streptomyces aureofaciens MY18 and str. roseviolaceus MR13. Journal of King Abdulaziz University : Sciences Vol. 3, no. 1 ( 1991), pp.5-19.
https://search.emarefa.net/detail/BIM-399917
American Medical Association (AMA)
Tawfiq, Kamal Abbas& Ramadan, al-Shahhat Muhammad. Factors affecting the biological activity of streptomyces aureofaciens MY18 and str. roseviolaceus MR13. Journal of King Abdulaziz University : Sciences. 1991. Vol. 3, no. 1, pp.5-19.
https://search.emarefa.net/detail/BIM-399917
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 17-18
Record ID
BIM-399917